It's simple. You will automatically offer your Twitter followers free coins every few hours. They can redeem them by scanning the QR code.
I will provide you a script and install instructions. Install takes about 5 mins. From time to time you have to refill the addresses with fresh coins.
Demo:
https://twitter.com/coinok/status/698866939888664576 - posting 2 times a day
Price: negotiable
Everything can be customized: text, images, so on.
Contact me via PM if you want to order.
I already got a lot of positive feedback here:
https://bitcointalk.org/index.php?topic=1343494